如何使用 ColorMatrix 工具反转图像的颜色？

发布于 2024-10-18 01:18:34 字数 293 浏览 2 评论 0原文

我必须在矩阵中放入哪些值？

Dim clMatriz As Imaging.ColorMatrix = New Imaging.ColorMatrix(New Single()() _
{New Single() {¿?, 0, 0, 0, 0}, _
 New Single() {0, ¿?, 0, 0, 0}, _
 New Single() {0, 0, ¿?, 0, 0}, _
 New Single() {0, 0, 0, ¿?, 0}, _
 New Single() {0, 0, 0, 0, ¿?})

原文

What values do I have to put in the Matrix?

Dim clMatriz As Imaging.ColorMatrix = New Imaging.ColorMatrix(New Single()() _
{New Single() {¿?, 0, 0, 0, 0}, _
 New Single() {0, ¿?, 0, 0, 0}, _
 New Single() {0, 0, ¿?, 0, 0}, _
 New Single() {0, 0, 0, ¿?, 0}, _
 New Single() {0, 0, 0, 0, ¿?})

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孤独难免 2024-10-25 01:18:34

虽然我不太确定您的颜色矩阵的特定版本如何工作，以及您的像素值是否在 0-255 或 0-1 范围内，但它应该如何工作：

如果您的像素范围是 0-255：

Dim clMatriz As Imaging.ColorMatrix = New Imaging.ColorMatrix(New Single()() _ {New Single() {-1, 0, 0, 0, 255}, _ New Single() {0, -1, 0, 0, 255}, _ New Single() {0, 0, -1, 0, 255}, _ New Single() {0, 0, 0, 1, 0}, _ New Single() {0, 0, 0, 0, 1})

如果它是 0-1：

Dim clMatriz As Imaging.ColorMatrix = New Imaging.ColorMatrix(New Single()() _ {New Single() {-1, 0, 0, 0, 1}, _ New Single() {0, -1, 0, 0, 1}, _ New Single() {0, 0, -1, 0, 1}, _ New Single() {0, 0, 0, 1, 0}, _ New Single() {0, 0, 0, 0, 1})

Though I am not exactly sure how that particular version of your color matrix works and if your pixel values are in the range 0-255 or 0-1 here's how it should work:

In case your pixel range is 0-255:

Dim clMatriz As Imaging.ColorMatrix = New Imaging.ColorMatrix(New Single()() _ {New Single() {-1, 0, 0, 0, 255}, _ New Single() {0, -1, 0, 0, 255}, _ New Single() {0, 0, -1, 0, 255}, _ New Single() {0, 0, 0, 1, 0}, _ New Single() {0, 0, 0, 0, 1})

In case it is 0-1:

Dim clMatriz As Imaging.ColorMatrix = New Imaging.ColorMatrix(New Single()() _ {New Single() {-1, 0, 0, 0, 1}, _ New Single() {0, -1, 0, 0, 1}, _ New Single() {0, 0, -1, 0, 1}, _ New Single() {0, 0, 0, 1, 0}, _ New Single() {0, 0, 0, 0, 1})

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